Direction Finding of Very-Low-Latitude Whistlers and Their Propagation
Spaced direction finding measurements of very-low-latitude whistlers were carried out in January 1988 at three stations in South China; Zhanjiang (geomaglat. 10.1°), Guilin (14.1°) and Wuchang (19.4°). Two horizontal magnetic and one vertical electric field components were simultaneously recorded over a wide frequency range to enable comprehensive direction finding. The analyses of whistler data on several days have indicated that the ionospheric transmission latitude of equatorial latitude whistlers is restripted to the geomagnetic latitude range of 10–14°, and the presence of high occurrence of echo-train whistlers is a strong indication of their field-aligned propagation. The propagation mechanism of very-low-latitude whistlers is discussed.
KeywordsMeridian Plane Geomagnetic Latitude Monopole Antenna Magnetic Meridian Plane Vertical Electric Field Component
Unable to display preview. Download preview PDF.
- 7.Hayakawa M., Ohta K., Shimakura S., Xu JS., Bao ZT., Liang BX (1988) A Proposal for multi-stationed direction finding measurements of lowand equatorial-latitude whistlers in China. Res. Lett. Atmos. Elect. 8: 31–35Google Scholar
- 9.Hayakawa M., Ohta K., Shimakura S (1990) Spaced direction finding mea sûrement of very-low-latitude whistlers and their propagation. Accepted for publication in J. Geophys. Res.Google Scholar